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R. MARVIN BRUSH Filed Feb. e, 1958 July 4, 1939.

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lNVENTOR @o Z eri" /yarvr-n/ @mx/WM ATTORNEY Patented July 4, 1939 UNITED sTATEs PATENT OFFICE 1 Claim.

My invention relates to improvements in cleaning devices such as brushes, brooms, mops, etc.; and it has for its objects the providing of a brush which shall be light in Weight; which shall be in- 5 expensive; in which the cleaning element when used may be readily changed to another; and in which the shape of the cleaning element may be changed from one form to another; and for another object it has the providing of a simple and eective means for securing the cleaning element to the handle.

Referring to the drawing: Figure I is an elevation of my cleaning device, partly in section. Figure II shows in section a different way of l5 forming the head of the brush; and Figure III shows still another way. Figures IV and V show details of construction.

In the drawing 2 is the hollow handle of my brush, which I preferably make of bamboo, in

which 4 is one of the nodes of the stem. I reinforce the end of the handle by means of the ferrule 6. Instead of a ferrule I may serve the end of the hollow handle with ne twine or cord, then giving it a coat of Varnish. A hole 8 is drilled through the handle, and into the hole 8 is snugly fitted a Wooden pin I0. Before driving the pin IU into place I slip over it an elastic band I2 which band is considerably shorter than the distance from the pin l0 to the head-end I4 of the handle 2. Into the loop of the band I2 I connect a stout wire hook I6.

At I8 is a plug 20, which may be made of wood, cork, or of any dried reed substance, such as a piece oi small bamboo stem; the object being to make a plug making a sweet fit, or a slightly loose ilt, in the end of the handle 2, and having through its length a small hole 22. In this hole 22 is snugly fitted a pin 24; preferably a split pin. This pin may be held more securely in the bore 22 by giving it a coat of varnish. My object is to secure the pin 24 in the bore 22 tightly, but not so tightly that it cannot be driven through the hole 22 by applying force.

At the end of the plug 20 is a collar 26, bored to pass the pin 24, and resting against the Squared end of the hollow handle 2. In Figure I, at 26 I have shown a at collar. I also use other forms, as will be explained hereinafter. At 28 is another collar, also strung on the pin 24. This collar also may have diierent shapes. The split pin 24 has an eye 30.

The cleaning element,-that is, the head of the brush 32,-may be made of yarn, cord, cloth, paper, strands from a rope, or from old woven fabric, from leather, rubber, or even wire.

The strands 34 are laid together lengthwise, and about a smooth wooden or metal pin or nail 36; and they are held in place by a tie 38. The split-pin 24 is driven partly through the bore 22 in the plug 2G; the collar 26 is slipped on the pin 5 24 and is brought up to the end of the plug 20; and then with the end of the pin 24 I push the pin 36 out of the bunch of strands 34; the end of the pin 24 taking the place oi the pin 36. I then secure the tie 33 rmly around the bunch. 10 See Figure V.

Now to complete the brush head I slip the other collar 23 over the end of the split-pin 24. The strands 34 are spread out from the pin 24 by the two collars 26 and 23. I then open the ends of 15 the split-pin 24, and hammer them flat against the collar 28. See Figure I. At the same time the collar 2S is driven toward the collar 26 until the strands 34 are held tightly between them. The pin 24 is as sai-d hereinbeiore a suiiciently tight 20 t in hole 22 of plug 29 to stay in the position shown in Figure I. Should it be desired to loosen the strands 34 it is only necessary to drive the pin 24 into the plug 29 up to its eye 30. The tie 36 is then easily reached and loosened. 25

When the collars 26 and 28 are both coneshaped the head of the brush will assume a more or less spherical form, as in Figure II. When collar 26 is cup-shaped, and collar 28 is cone shaped and made smaller, the ends of the strands 30 34 will extend away from the end of the handle 2, as in Figure III. And if the positions of the two collars should be exchanged, the strands 34 will extend along the handle 2.

It will be seen now that the plug 20 holds the 35 split-pin 24,-rst, so that the collar 26 may be held in spaced relation to collar 28; and second, so that the pin 24 is approximately in the center of the hollow of the handle.

I make up complete heads of different shapes,r 40 for different purposes; or I can, by uncleating the pin 24, and removing the collars 26 and 28, take the head to pieces. I have already explained how the strands may be loosened after driving the split-pin through the plug up to its head or eye 45 36. I have mentioned cup-shaped and coneshaped collars. Other heads of other shapes may be made by changing the form of the collars. For instance: a collar may be hemispherical or it may be part cone-shaped and part cup-shaped; or part 50 cone-shaped and part flat; which different forms of collar will produce diierent forms of brush head.

To change one hea-d for another I pull the head 32 away from the handle 2, and in doing so' pull 55 the plug 20 out of the end of the handle, until the eye 30 of the pin 24 is exposed. I then remove the hook I6 from the eye 3U of the pin 24, and hook it over the side Wall of the hollow handle 2, as shown in Figure IV. A new head is then easily attached to the hook I6, and the plug 20 with the new head is released so that the elastic l2 will pull it into the end of the handle 2. The elastic l2 may be replaced by a coiled spring if desired; but the elastic is cheaper, it can be secured almost anywhere; and by turning the plug 2U in the end of the handle 2 the elastic may be twisted and so tightened.

I claim:

A cleaning device comprising a tubular handle,a

plug loosely and removably mounted in one end of the hollow handle, the plug being bored throughout its entire length; a pin tightly but slidably mounted in the bore in the plug and having a laterally bent end portion; a pair of collars slidably mounted on the pin and held against the bent end portion of the pin by the slidable plug; a mop-head held between the two collars; and an elastic member secured by one end in the hollow handle, and detachably attached to the end of the pin within the handle, and arranged so that the pin may be detached from the elastic by pulling it and the plug from the hollow handle.

ROBERT MARVIN. 

